CA2054136A1 - Hearing aid - Google Patents

Hearing aid

Info

Publication number
CA2054136A1
CA2054136A1 CA2054136A CA2054136A CA2054136A1 CA 2054136 A1 CA2054136 A1 CA 2054136A1 CA 2054136 A CA2054136 A CA 2054136A CA 2054136 A CA2054136 A CA 2054136A CA 2054136 A1 CA2054136 A1 CA 2054136A1
Authority
CA
Canada
Prior art keywords
filter
amplifier
hearing aid
microphone
emphasis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2054136A
Other languages
French (fr)
Other versions
CA2054136C (en
Inventor
Zlatan Ribic
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Viennatone GmbH
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2054136A1 publication Critical patent/CA2054136A1/en
Application granted granted Critical
Publication of CA2054136C publication Critical patent/CA2054136C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/50—Customised settings for obtaining desired overall acoustical characteristics
    • H04R25/502—Customised settings for obtaining desired overall acoustical characteristics using analog signal processing

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Networks Using Active Elements (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Amplifiers (AREA)

Abstract

A hearing aid with a microphone, with at least one amplifier fed with the signals from said microphone, whereby said amplifier cooperates with a filter of a higher order for influencing the frequency response, and with a loudspeaker which transforms the amplified signals into soundwaves. This filter (3) can be arranged in the conventional manner between two amplification stages or in the feedback loop of the amplifier (6). In order to allow the optimal adjustment of the frequency response to the respective requirements it is provided in this hearing aid that the filter (3) is arranged as a multiple filter with a biquadratic structure and comprises at least two integrators and an inverting amplifier, whereby the active elements of their components are formed by transistors, preferably single transistors (T1, T2, T3). The feedback loop of the amplifier (6) is guided through an adjustable potentiometer (RA) for setting the filter emphasis or de-emphasis and in the filter circuit (3) there is arranged an adjustable potentiometer (RF) for setting the mid-frequency of the filter (3).
CA002054136A 1990-11-07 1991-10-24 Hearing aid Expired - Fee Related CA2054136C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA2237/90 1990-11-07
AT0223790A AT407103B (en) 1990-11-07 1990-11-07 HEARING AID WITH FILTER CIRCUIT

Publications (2)

Publication Number Publication Date
CA2054136A1 true CA2054136A1 (en) 1992-05-08
CA2054136C CA2054136C (en) 1995-04-25

Family

ID=3530575

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002054136A Expired - Fee Related CA2054136C (en) 1990-11-07 1991-10-24 Hearing aid

Country Status (6)

Country Link
US (1) US5263089A (en)
EP (1) EP0485357B1 (en)
AT (1) AT407103B (en)
CA (1) CA2054136C (en)
DE (1) DE59107507D1 (en)
DK (1) DK0485357T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5909497A (en) * 1996-10-10 1999-06-01 Alexandrescu; Eugene Programmable hearing aid instrument and programming method thereof

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5406633A (en) * 1992-11-03 1995-04-11 Auditory System Technologies, Inc. Hearing aid with permanently adjusted frequency response
US7010136B1 (en) * 1999-02-17 2006-03-07 Micro Ear Technology, Inc. Resonant response matching circuit for hearing aid
WO2001070110A1 (en) * 2000-03-24 2001-09-27 Franz Burkhard K H G Method and apparatus for treating tinnitus
US8027799B2 (en) * 2007-11-28 2011-09-27 Honeywell International Inc. Digital potentiometer system
EP4046396A4 (en) * 2019-10-16 2024-01-03 Nuance Hearing Ltd. BEAM SHAPING DEVICES FOR HEARING AIDS
DE102022111300A1 (en) 2022-05-06 2023-11-09 Elevear GmbH Device for reducing noise when reproducing an audio signal with headphones or hearing aids and corresponding method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1294456C2 (en) * 1966-08-01 1976-02-05 Siemens AG, 1000 Berlin und 8000 München MILLER INTEGRATOR
US3619659A (en) * 1969-12-02 1971-11-09 Honeywell Inf Systems Integrator amplifier circuit with voltage regulation and temperature compensation
DE2658301C2 (en) * 1976-12-22 1978-12-07 Siemens Ag, 1000 Berlin Und 8000 Muenchen Hearing aid
DE2813946C2 (en) * 1978-03-31 1980-01-31 Siemens Ag, 1000 Berlin Und 8000 Muenchen Filter circuit with a biquadratic transfer function
US4453132A (en) * 1982-04-21 1984-06-05 Motorola, Inc. Active filter
US4792977A (en) * 1986-03-12 1988-12-20 Beltone Electronics Corporation Hearing aid circuit
GB2192511B (en) * 1986-07-11 1990-02-21 Roger Frederick Laurence Hearing aid
US5075582A (en) * 1989-03-30 1991-12-24 Siemens Aktiengesellschaft Integratable bandpass filter circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5909497A (en) * 1996-10-10 1999-06-01 Alexandrescu; Eugene Programmable hearing aid instrument and programming method thereof

Also Published As

Publication number Publication date
EP0485357A3 (en) 1993-01-13
ATA223790A (en) 1994-04-15
EP0485357B1 (en) 1996-03-06
US5263089A (en) 1993-11-16
AT407103B (en) 2000-12-27
DK0485357T3 (en) 1996-05-20
CA2054136C (en) 1995-04-25
EP0485357A2 (en) 1992-05-13
DE59107507D1 (en) 1996-04-11

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed